AI Article Synopsis
- - The pyrolysis of passenger-car-waste-tires (PCWT) is gaining attention as an effective disposal method, but understanding the reaction mechanisms involved has been challenging due to the complexity of the processes.
- - This study utilized thermogravimetric analysis and advanced mass spectrometry techniques to investigate the products of PCWT pyrolysis and established a detailed mechanism network based on the pyrolysis of different rubber types.
- - Key findings include the identification of primary pyrolytic products such as chain and cyclic alkenes and monocylic aromatics, along with a calculated activation energy that characterizes the kinetic behavior of the PCWT pyrolysis process.
Article Abstract
The pyrolysis of passenger-car-waste-tires (PCWT) has recently attracted widespread attention because it is a highly effective disposal method. However, a comprehensive understanding of real tire pyrolytic processes is limited owing to the complicated PCWT pyrolysis reaction system, particularly regarding the reaction mechanism. This study investigated the PCWT pyrolytic processes using a thermogravimetric analyzer coupled with mass spectrometry and analyzed all the pyrolytic products using pyrolysis-gas chromatography coupled with mass spectrometry. The composition and distribution of the PCWT pyrolytic products were investigated under a kinetic regime to eliminate other influences on the intrinsic reaction. The pyrolytic products mainly consisted of chain and cyclic alkenes, and monocylic aromatics. Importantly, an integral pyrolytic mechanism network for the PCWT was established based on the pyrolysis of single rubbers (natural, styrene butadiene, and butadiene rubbers). The reaction routes for the main products were determined according to the mechanism. Moreover, a kinetic study of the PCWT pyrolysis revealed the activation energy for this complicated reaction system.
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| http://dx.doi.org/10.1016/j.wasman.2022.05.024 | DOI Listing |
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